Nonwoven webs treated with fixed mobile materials
View Patent ↗The present invention describes a means for fixing skin care ingredients on the surface of non-woven webs and cellulosic mats. The active ingredients can be released (deposited) onto the skin by normal triggering mechanisms, which include the action of water or urine or by friction or rubbing. The fixative systems described herein provide the ability to control high load levels while not interfering with the wettabliity of the fabric or paper. Additionally, incompatible/reactive ingredients can be treated onto the same web and are kept as separate particles fixed to the surface until released.
1. A non-woven article comprising:
a composition for treating a nonwoven web comprising
starch, and
an oily mobile material,
wherein the oily mobile material is fixed to the article by the starch, and
wherein the oily mobile material is at least a surfactant selected from the group consisting of sulphonates of (C 1 -C 22 )alkanes and (C 2 -C 22 )alkenes; (C 8 -C 22 )fatty acids and salts thereof; ethoxylates (2-30) of (C 8 -C 22 )fatty amines; polyoxyethylene polyols; ethoxylated (1-20) sorbitan (C 8 -C 22 )fatty acid esters which are uncapped or capped with (C 1 -C 10 )alkoxylates; sorbitan (C 8 -C 22 )fatty acids; polyoxyethylene (2-100) sorbitol (C 8 -C 22 )fatty esters; ethoxylated (2-100) (C 8 -C 22 )fatty alcohols; phosphate and sulfonate esters of (C 8 -C 22 )fatty acids; sulphosuccinates; sulphosuccinamates; phenol-, naphthyl-, phenol(C 1 -C 12 )alkyl- and naphthyl(C 1 -C 12 )alkyl-sulphonates; castor oil ethoxylates (2-200); and block copolymers of ethylene oxide (2-100) and propylene oxide (2-50); and combinations thereof and wherein the articles is selected from the group consisting of diapers, facial tissue, skin care wipes, bath tissue, feminine napkins, cleaning wipes, polishing wipes, anti-rust clothes, lubricating wipes, static control wipes, sanitizing and car care cloths.
2. The composition of claim 1 , wherein the oily material further comprises an emollient.
3. The composition of claim 1 , wherein the starch is selected from the group consisting of waxy maize, tapioca, potato and sago.
4. The composition of claim 1 , wherein the starch is a converted starch.
5. The composition of claim 1 , wherein the starch is modified with a reagent chosen from the group consisting of organic acid anhydrides, alkylene oxides and oxidizing agents.
6. The composition of claim 1 , wherein the starch is modified with a reagent chosen from the group consisting of octenyl succinic anhydride, propylene oxide and sodium hypochloride, and
wherein the surfactant is a combination of two or more surfactants selected from the group consisting of polyoxyethylene(2-20) cetyl, stearyl or laureth alcohol, glycerol monooleate, polyoxyethylene(2-20) sorbitan (C 12 -C 18 )fatty esters, and sorbitan (C 12 -C 18 )fatty acid esters.
7. The composition of claim 4 , wherein the starch is converted to a water fluidity of greater that 40.
8. The composition of claim 7 , wherein the starch is converted to a water fluidity of greater than 70.
9. The composition of claim 4 , wherein the starch is a maltodextrin or pyrodextrin.
10. The composition of claim 9 , wherein the maltodextrin or pyrodextrin is chemically modified with octenyl succinic anhydride, the oily mobile material further comprises petrolatum, and the surfactant is a combination of two or more surfactants selected from the group consisting of polyoxyethylene (2-20) cetyl, stearyl or laureth alcohol, glycerol monooleate, polyoxyethylene (2-20) sorbitan (C 12 -C 18 )fatty esters, and sorbitan (C 12 -C 18 ) fatty acid esters.